Thomas James W
Related Filers (2)
Ownership (26)
4
Tuesday, 8/11/2020
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 3/13/2019
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 2/19/2019
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 6/1/2018
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 12/7/2017
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 8/11/2017
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 12/7/2016
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 11/16/2016
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Friday, 6/3/2016
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 5/16/2016
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 6/10/2015
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 2/12/2015
DAWSON OPERATING CO: Statement of changes in beneficial ownership of securities
4
Thursday, 2/12/2015
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
3
Thursday, 2/12/2015
DAWSON GEOPHYSICAL CO: Initial statement of beneficial ownership of securities
4
Tuesday, 12/9/2014
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 11/4/2013
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 6/11/2012
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 8/9/2011
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 7/28/2010
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4/A
Tuesday, 10/20/2009
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Monday, 10/5/2009
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Thursday, 12/4/2008
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Tuesday, 6/3/2008
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
4
Wednesday, 5/14/2008
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities
3
Friday, 8/31/2007
DAWSON GEOPHYSICAL CO: Initial statement of beneficial ownership of securities
4
Friday, 8/31/2007
DAWSON GEOPHYSICAL CO: Statement of changes in beneficial ownership of securities